Time division multiplex telephone switching system having single and multiple party pre-address and priority check circuitry



' T. FRANKEL' ETAL MUL Oct. 1, 1963 3,105,878 TIPLEX TELEPHONE SWITCHING SYSTEM 21 Sheets-Sheet 1 Filed May 13, 1960 COMMON TRANSMISSION I CHANNEL \J 3 S T u T P I s H T T T m N O @T L m i s U IS E L M M RRB N A SE EE N A H TT ST? E RT E? S T 8 LH LG ML I|l| EL I AF T E E T mm n m w| 4 5 E 4 HT C A A NCB 8 UR" rlo ET" nlu. Um" MT G F N 0 F C I m U L 8 E SR G R m 1L :llillL WE? W LNN w I KE IA :8 ALCF IE IE C 3 LG N W C U L R m B E U BE m RS2 B1 m e 83% Ill U I U F F S S INVENTORS. THE 000/? FRANKEL BY W/LL/AM H. BLACK ATTORNEY Oct. 1, 1963 Filed May 13, 1960 T FRANKEL ETAL TIME DIVISION MUL TIPLEX TELEPHONE SWITCHING SYST HAVING SINGLE AND MULTIPLE PARTY PRE-ADDRESS AND PRIORITY CHECK CIRCUITRY 21 Sheets-Sheet 2 COMMON TRANSMISSION F CHANNEL I n n A CI R'E EI LINE C SUBSCRIBER U i "c" SUBSET SIGNALLING PATH FIGA I Flea 2MB I I l T.T.S. l LINE TIME I I SLOTHSIORE c FIG.5 SPACE J DIVISION MATRIX FIG.8 I n u 'k'gg f D SUBSCRIBER SUBSET 5 FIG 4 I FIGS. 2A,2B

I T.T.S. I LINE TIME I l SLOTUSIORE I I D I FIG.5 l J TIME SLOT SET (T.S.S.)

BUSY TEST REG IISTER MATRIX FIGS SAQB FIGS.|0A,|0B

PRESET ADDRESS FIGS. I2A,I2B

PRIORITY CIRCUIT FIGS. l3A,l3B

REGISTER 2 BUSY TEST 7 FIGS. 9A,9B MATRIX FIGS. |OA,|OB| PRESET ADDRESS FIGS. |2A,I2e

Oct. 1, 1963 "r. FRANKEL ETAL 73 TIME DIVISION MULTIPLEX TELEPHONE SWITCHING SYSTEM HAVING SINGLE AND MULTIPLE PARTY PREP-ADDRESS 21 Sheets-Sheet 3 AND PRIORITY CHECK CIRCUITRY Filed May 13, 1960 Y H RY E K P.

HOOK SWITCH 2&0

SUBSCRIBER SUBSET Oct. 1, 1963 T. FRANKEL ETAL 3,105,878

TIME DIVISION MULTIPLEX TELEPHONE SWITCHING SYSTEM HAVING SINGLE AND MULTIPLE PARTY PRE-ADDRESS AND PRIORITY CHECK CIRCUITRY 21 Sheets-Sheet 4 Filed May 13, 1960 JLSIGNALLING KEYS ggl PRESET ADDRESS KEYS 2H SUBSCR/BEI? SUBSET Oct. 1, 1963 -r. FRANKEL ETAL 3,105,878 TIME DIVISION MULTIPLEX TELEPHONE SWITCHING SYSTEM HAVING SINGLE AND MULTIPLE PARTY PRE-ADDRESS AND PRIORITY CHECK CIRCUITRY 21 Sheets-Sheet '7 Filed May 13. 1960 8x 003 zww x2 20mm 55 5am mzj 2oz.

w 6E mmzz om m2] $27120 20mm 1, 1963 T. FRANKEL ETAL 3,

TIME DIVISION MULTIPLEX TELEPHONE swncnmc SYSTEM HAVING SINGLE AND MULTIPLE PARTY PRE-ADDRESS AND PRIORITY CHECK CIRCUITRY Filed May 13, 1960 21 Sheets-Sheet 8 SERVICE REQUEST LEADS FROM LlNaClRCUITS a 56 e4 O I O O {eos 64 g 608 LINE R 1 MATRIX (64"AND" g GATES 3 0 SLOW RING COUNTER r 2 TERM. 8 I I TERM. 1

FAST RING COUNTER TERM. 8

I E 602 m FREE REGISTER AVAILABLE FRA w g m 5 |200us E FROM REGISTER ALLOTTER SLOT STORES ALLOTTER 1963 'r. FRANKEL ETAL 3,10 ,878

TIME DIVISION MULTIPLEX TELEPHONE SWITCHING SYSTEM HAVING SINGLE 'AND MULTIPLE PARTY PRE-ADDRESS AND PRIORITY CHECK CIRCUITRY Filed May 13. 1960 21 Sheets-Sheet 9 FROM MX GEN. (400 KC) 103 BINARY COUNTING CHAIN m TO THE Tss BUS ATS VIA.

4 THE REGISTER ALLOTTER FIG. IIB

Am 709 70s TO ALL SLOT ALLOTTER 4) |NE T|ME ALLOTTER ADVANCE LEAD 1| o g' g g ADVANCE GATE ' 1963 T. FRANKEL ETAL 3, ,878

TIME DIVISION MULTIPLEX TELEPHONE swrrcnmc SYSTEM HAVING SINGLE AND MULTIPLE PARTY PRE-ADDRESS AND PRIORITY CHECK cmcurmy 21 Sheets-Sheet 1i."

Filed May 13. 1960 TO SPAC E FROM REGISTER ALLOTTER CIRCUIT GEN.

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TIME DIVISION MULTIPLEX TELEPHONE SWITCHING SYSTEM HAVING SINGLE AND MULTIPLE PARTY PRE-ADDRESS AND PRIORITY CHECK CIRCUITRY Filed May 13, 1960 21 Sheets-Sheet 13 LINE BUSY TEST MATRIX Oct. 1, 1963 T. FRANKEL ETAL 3,105,878 TIPLEX TELEPHONE SWITCHING SYSTEM TIME DIVISION MUL HAVING SINGLE AND MULTIPLE PARTY PRE-ADDRESS AND PRIORITY CHECK CIRCUITRY 21 Sheets-Sheet 14 Filed May 13, 1960 TO LINE TIME SLOT STORES 58x6 .586 586 556mm KEQE LE2; mz: 9E N m mmkw wwm B 20E 56E 20E 56% w z I m w E mm J m s s 0 w S c MSW XI 5 MR0 FDT m R N D8 D E A A D T M A I027 CROSSPOINT I I I I I l I I i F /6. /0B L/NE BUSY TEST MATH/X Oct. 1, 1963 T. FRANKEL ETAL 3,105,878 TIME DIVISION MULTIPLEX TELEPHONE SWITCHING SYSTEM HAVING SINGLE AND MULTIPLE PARTY PRE-ADDRESS AND PRIORITY CHECK CIRCUITRY 21 Sheets-Sheet 15 Filed May 13, 1960 REGISTER DEMAND GATE IIO? CALLING TERMINATING /'I I08 COUNTER H03 lll9 II l8 DELAY A: IIO4 5KC DRIVE PULSES III4 DRIVE REGISTER READ IN COUNTER TO REGISTER TIME SLOT STORES FROM CALLING LINE SCANNER REGISTER ALLOTTER Oct. 1, 1963 HAVING SINGLE AND MULTIPLE PARTY PRE-ADDRESS T. FRANKEL ETAL TIME DIVISION MULTIPLEX TELEPHONE SWITCHING SYSTEM AND PRIORITY CHECK CIRCUITRY Filed May 13. 1960 21 Sheets-Sheet 16 FROM TIME TO CALLING SLOT FROM LINE SCANNER ALLOTTER REGISTERS /M\ t T 4 l 0. (I) g E 3 i l- (I) ,II4I' 0: LL! ,1 ALLOTTER o GATE H02 9 II0I TSS III j. &:D 7

:ll23 l REGISTER READOUT COUNTER ll4l IIos H09 r!5 RoA' llll l ROA }-H64 H58 H59 & H63 ||52 T ff Q m IlO5\ IIQS DELAY ISOLATION MULTIVIBRATOR MEANS D O J FROM BUSY TEST MATRICES REG/STE AL LOTTER TO TIME SLOT STORES TO REGISTERS- Oct. 1, 1963 r. FRANKEL ETAL 3,105,878

TIME DIVISION MULTIPLEX TELEPHONE SWITCHING SYSTEM HAVING SINGLE AND MULTIPLE PARTY PRE-ADDRESS AND PRIORITY CHECK CIRCUITRY Filed May 13. 1960 21 Sheets-Sheet 17 To "AT" AND "Au" BUSSES OF BUSY TEST MATRIX ENCODING GATES |2|9 A AACEA A DISTRIBUTING GATES TRANSMITS L I TIME SLOT PULSES(TTS) FROM SWITCH THROUGH m GATE 957 l2ll |22| I222 I223 2 lcs g 1224 E l2l6 j CALLED PARTY {5 ADDRESS COUNTER 12w 0 '5, CR1 a w |2|4 Cl:

|2|o 7 'TAZOI I208 m 4 T MULTIPLE PARTY w ADDRESS GATE l6 0 fi') 6 E I203 u. 2 1206 O w o a D m f SINGLE PARTY ADDRESS GATES m 0 T/IZOS Lu 8 5 RS 0 o 1242 DJ 0:

3,105,878 STEM Oct. 1, 1963 T. FRANKEL ETAL TIME DIVISION MULTIPLEX TELEPHONE SWITCHING SY HAVING SINGLE AND MULTIPLE PARTY PRE-ADDRESS AND PRIORITY CHECK CIRCUITRY 21 Sheets-Sheet 18 Filed May 13, 1960 ENCODING GATES l2l9 DISTRIBUTING GATES mmmmnm 5 oh FIG. /2 B STORED ADDRESS CIRCUIT Oct. 1, 1963 HAVING SINGLE AND MULTIPLE PARTY PRE-ADDRESS AND PRIORITY CHECK CIRCUITRY Filed May 13, 1960 21 Sheets-Sheet 19 LINE BUSY LINE BUSY REGISTER REGISTER TEST TEST 1 2 MATRIX-2 MATRIX-l E E n: 8

I E RoT g 1 l33l I I 2 RING N |3o6 COUNTER II I3o4 ,5 RM m 1 6 I 1 COUNTER 5 DRIVE GATE TO CLOCK LINE TIME sLoT TTS sToRE Io LINE II sLoT STORE l3l3 2 I I3 LINE R 03 TIME TTS sL T STSRE PRIORITY I FLIP-FLOP CLl-l0 -l302 N o: ,1 as n. a; C 2

LI- ""E g:

cLI-I [I n: O. 0. F76 L34 REGISTER REGISTER PRIOR/ TY CHECK CIRCUIT 1 2 Oct. 1, 1963 T. FRANKEL ETAL 3,105,878

TIME DIVISION MULTIPLEX TELEPHONE SWITCHING SYSTEM HAVING SINGLE AND MULTIPLE PARTY PRE-ADDRESS AND PRIORITY CHECK CIRCUITRY Filed May 13, 1960 21 Sheets-Sheet 20 LOWEST HIGHEST TIME SLOT 0F PRIORITY PRIORITY CALLED PARTY I3I7 LINE TIME SLOT STORE LINE TIME SLOT STORE LEVEL l LEVEL 2 E Q I LEVEL 3 LEVEL 4 LINE TIME SLOT STORE HIGHEST PRIORITY I PRIORITY RATING GATES TIME SLOT OF CALLING PARTY LOWEST 35 I37I PRIORITY PRIOR/7') CHECK CIRCUIT FROM REGISTER 

2. IN A TIME DIVISION MULTIPLEX TELEPHONE SYSTEM, A GROUP OF LINES ASSOCIATED WITH A COMMON TRANSMISSION CHANNEL, MEANS FOR COUPLING A FIRST LINE TO SAID COMMON TRANSMISSION CHANNEL DURING A PARTICULAR TIME SLOT WITHIN SECURRING TRANSMISSION FRAMES, CALL ROUTING MEANS, MEANS CAPABLE OF TRANSMITTING A MULTIPLE PARTY PRE-ADDRESS SIGNAL TO SAID CALL ROUTING MEANS, AND MEANS WITHIN SAID CALL ROUTING MEANS RESPONSIVE TO THE TRANSMISSION OF SAID MULTIPLE PARTY PRE-ADDRESS SIGNAL FOR CAUSING A PLURALITY OF LINES OF SAID GROUP OF LINES TO BE COUPLED TO SAID COMMON 